[C320-list] Exhaust Water Problem Aqua lift muffler

[jimc320 at aol.com]

Dick,

Thanks,

I am starting to think that it may be in the exhuast elbow since its near the age of the one that it replaced. When I had?a problem 6 years ago it was related to the elbow with the exhuast side of the elbow? almost blocked off. In looking at my original elbow, that was replaced, the water inlet shows some blockage too. This time the water side may be the most restricted and limiting the flow causing the muffler not to fill up fast as normal.Thereby requiring?running the engine longer than I am willing to allow (until I know whats going on) to fo fill the mufler to the requred level for the exhuast to dicharge it.

I will let the group know what it was. 

By the way, be happy you have a Yanmar, The elbow on the Perkins cost me around $350.00 6 years ago.

Anyone have a source for perkins parts?

Jim

-----Original Message-----
From: Richard A. Walker <dickwalker at att.net>
To: C320-List at Catalina320.com
Sent: Mon, 7 Apr 2008 12:36 pm
Subject: Re: [C320-list] Exhaust Water Problem Aqua lift muffler



In addition the Yanmar manual recommends to change the Exhaust bypass elbow.
This is Yanmar part # 12827013600 and costs about $150.00 

Cheers,
?
Dick Walker
C-320 (687) WindWalker II
740 Olive Ave.
Coronado, CA 92118-2136
619.435.8986


-----Original Message-----
From: c320-list-bounces at lists.catalina320.com
[mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Pete Herron
Sent: Monday, April 07, 2008 9:25 AM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Exhuast Water Problem Aqua lift muffler

Our Yanmar overheated while motoring near Catalina a few years back.  
We sailed to the mooring (at about 2 kts, there was little wind).  
Another C320 owner on a nearby mooring told me that the guy on the 
adjacent mooring might be of help - he was a retired Yanmar mechanic.

The guy showed up 30 minutes later, freshly showered, in a clean shirt 
and ready for dinner with his friends.  He found a blockage in the 
vented loop line that runs from the engine, to the vent in the port 
locker, and back to the exhaust elbow.  The blockage was caused by a 
buildup of salt crystals.  He cleared the blockage by momentarily 
reversing the hose connections at the engine.  He held the reversed 
connections to the engine by hand, not by tightening the clamps.  The 
"backwards" flow of water blew out the buildup.  It also blew a cloud 
of soot that landed on his clean, white shirt.

The next morning I rowed over to his boat to leave a bottle of red, but 
he was already gone.  We never saw him again.  Who was that masked man?

So, check the vented loop line.  The buildup would be at a low point in 
the line, not at the vent itself.  And, wear an old shirt.

Pete
#329


On Apr 7, 2008, at 5:12 AM, Jon Vez wrote:

> Jim,
>
> Can you determine whether the water you are finding in the muffler is 
> 'new'.
> Risidual water remains in the water, especially when engaging the 
> starter. I
> can't comment on whether the muffler is the problem--although it is a 
> *dumb*
> device and if the exhaust is getting out, then there is at least some 
> open
> pathway out the boat. Another health concern by the way would be Carbon
> Monoxide escaping if there is a leak somewhere. The other thing you 
> may want
> to check is the heat exchanger. If this is clogged with salt, calcium 
> or old
> impeller blades it may be causing your problem...
>
> Regards,
>
> Jon Vez
> Solstice #582
>
> -----Original Message-----
> From: c320-list-bounces at lists.catalina320.com
> [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of
> jimc320 at aol.com
> Sent: Monday, April 07, 2008 7:21 AM
> To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Exhuast Water Problem Aqua lift muffler
>
> Kirk, Jon,
>
> Thanks for the response,
>
> I did check the?check the impeler and water flow as soon as no water 
> came
> out, everything is okay plenty of water.
>
> Just to clarify,? It appears that the water is getting to the muffler 
> as I
> have had to drain it, but does not leave with the exhuast.
>
> As Jon mentioned, I have not been able to run the engine very long for 
> fear
> of backing up water into it.
>
> Is it possible that the Aqualift muffler has failed and the exhuast is 
> going
> straight out with out causing back pressure to cause the water to exit 
> with
> it.
>
>
>
> -----Original Message-----
> From: Kirk McCullough <kirk.mccullough at telus.net>
> To: C320-List at Catalina320.com
> Sent: Sun, 6 Apr 2008 10:37 pm
> Subject: Re: [C320-list] Exhuast Water Problem Aqua lift muffler
>
>
> I agree with Jon. Water in means water out. My guess is you are not 
> getting
> raw water in, which will result in overheating when you run the engine 
> with
> a load. With no load the engine will appear to run fine, but you 
> cannot go
> to sea without water coming out.?
> ?
> It must be the impeller, again assuming you have the thru-hull open.?
> ?
> A plugged elbow will result in black smoke and low rpm under load, but 
> the
> water will still flow thru.?
> ?
> Kirk?
> #124 Perkins M30?
> ----- Original Message ----- From: "Jon Vez" <jonvez at comcast.net>?
> To: <C320-List at Catalina320.com>?
> Sent: Sunday, April 06, 2008 12:56 PM?
> Subject: Re: [C320-list] Exhuast Water Problem Aqua lift muffler?
> ?
>> Jim,?
>> ?
>> Assuming the obvious--you have the thru hull open and there is no
> blockage?
>> either inside the hose or on the outer hull, I would check your 
>> impeller.
>> It?
>> is critical to get water coming out and I would not run the engine 
>> until >
> you?
>> determine the problem. If water is indeed getting in and to the 
>> muffler
> it?
>> is possible that it will back into the engine if you have blockage at 
>> the?
>> muffler. I have never heard of the muffler getting blocked, but I am 
>> sure?
>> this is possible...Hope this helps and good luck...?
>> ?
>> Regards,?
>> ?
>> Jon Vez?
>> Solstice #582?
>> ?
>> -----Original Message-----?
>> From: c320-list-bounces at lists.catalina320.com?
>> [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of?
>> jimc320 at aol.com?
>> Sent: Sunday, April 06, 2008 2:01 PM?
>> To: C320-List at Catalina320.com?
>> Subject: [C320-list] Exhuast Water Problem Aqua lift muffler?
>> ?
>> All?
>> ?
>> 1995 Hull 209, Perkins M30?
>> ?
>> I just started the Engine up for the first time this season and do 
>> not >
> have?
>> any water exiting out the exhaust outlet on the Hull.?
>> ?
>> Water is making it to the aqualift muffler but does not exit with the?
>> exhaust as usual.? The engine appears to run fine so I don't believe
> there?
>> is complete?blockage of exhaust.?About 5 years ago I had to replace 
>> the?
>> exhaust elbow engine, do to blockage that caused engine issues >
> by?partially?
>> blocking?the exhaust flow, but the engine seems to run with out 
>> symptoms >
> of?
>> a blocked exhaust this time.?
>> ?
>> Does any one know if it is possible that the Aqualift muffler( 
>> original?
>> Catalina muffler)?could be broken and?letting the Exhaust by with out 
>> >
> taking?
>> the water.?
>> ?
>> Any?and all?possible solutions are welcome.?
>> ?
>> Jim?
>> Elusive 2, 209??
>> ?
>> ?
>> ?
>> -- > No virus found in this incoming message.?
>> Checked by AVG.?
>> Version: 7.5.519 / Virus Database: 269.22.8/1362 - Release Date: 
>> 4/6/2008
>> 11:12 AM?
>> ?
>> ?
>